baber/WOPTO huggingface dataset:
Patent GB-1180500-A (GB)
Title: A Combination of a Shaft and Driving Means for causing it to Rotate at a Speed Dictated by a Control Voltage Applied to the Driving Means
IPC: H02P5/46
Filed: 1968-06-07
Abstract: 1,180,500. Control of D.C. motors. SIEMENS A.G. 7 June, 1968 [9 June, 1967], No. 27331/68. Heading H2J. [Also in Division G3] A shaft A is driven at a variable speed in either direction by oppositely-rotating D.C. motors M1, M2 which are coupled to the shaft through a differential gear D and are alternately and periodically connected to a D.C. source U by respective switching transistors p2, p3 whose conductive periods are controlled by a pulse-width modulator G in accordance with a D.C. voltage el. This voltage is applied to the input of a differential amplifier p1 whose output is fed to the modulator G together with a voltage of triangular waveform from a generator Dr, these two input voltages being compared in the modulator which produces output voltages at terminals a2, a3 dependent on the comparison. As the voltage e1 is varied from a maximum positive to a maximum negative value, the modulator output correspondingly varies from a condition in which there is a steady voltage at terminal a2 and no voltage at terminal a3 to the reverse of this condition, the corresponding motor operating conditions being transistor switch p2 continuously conducting, motor M1 running at maximum speed, motor M2 stationary and transistor switch p3 continuously conducting, motor M2 running at maximum speed, motor M1 stationary. For values of e1 intermediate these extreme conditions corresponding pulse trains appear at terminals a2, a3, which trains additively represent a substantially constant voltage and individually determine the speed of the motor controlled thereby. When the value of e1 is zero the motor speeds are equal and shaft A is stationary. Constant speed of the shaft is provided by a feedback circuit comprising tacho-generators T1, T2 respectively responsive to the speeds of the motors M1, M2 and providing outputs which are connected in opposition to produce a second input signal e2 to the amplifier p1.
Patent GB-629204-A (GB)
Title: Improvements relating to clips for laminated springs
IPC: F16F1/26
Filed: 1947-10-13
Abstract: 629,204. Springs. ROVER CO., Ltd., and BOYLE, W. R. Oct. 13, 1947, No. 27381. [Class 108(iii)] A clip for a laminated spring comprises a flexible metal band adapted to be placed around the spring and a resilient washer through which the ends oi the band can be inserted, the two parts being such that they can be secured together by bending the ends of the band over the washer. As shown, a flexible metal band 1 embraces a laminated spring 2 and the ends 3, 3 of the band project through a rectangular hole 5 in a resilient bowed washer 4. The washer is pressed down against the spring and the ends 3, 3 of the band are bent over to secure the band and washer in position. According to the Provisional Specification, the central part of the washer is preferably flat.
Patent GB-273824-A (GB)
Abstract: 273,824. Bethell, G. M. April 12, 1926. Tickets, issuing; recording number and value of.-The selecting member which is set in various positions to determine the nature of the ticket to be issued, positions a follower member from which an impression is taken upon a record strip, the location of the impressions depending upon the setting of the selecting member. The Figures show an adaptation to the mechanism described in Specification 246,580 in which the value of a ticket to be printed and issued is determined by setting a rotary knob. A gear 11 on the spindle of this knob meshes with a gear on a screwed shaft 10 on which is mounted a nut 12. The nut has an arm 14 slidably embracing a rod 13 so as to prevent rotation of the nut. Another arm 12 has an extension 20 the forked end of which embraces a collar 22 slidably mounted on a shaft 21. A boss 19 on the arm 18 is secured to a slidable guide rod 17. Axial movement of the nut 12 is thus transmitted to the collar 22 which carries an arm 25 having a type face or punch on its face 26. The arm is depressed against a record sheet 38, when a ticket is issued, by a bar 30 engaging a notch in its end. The bar 30 is mounted on arms 28 which are rocked by a yoke 33 embracing an eccentric 34 on a gear driven shaft 35. A pawl 49 on the yoke actuates the record-sheet feeding ratchet 51, and an inkribbon 44 is fed beneath the record sheet bv gearing 52, 53, 54. The platen 43 may be perforated. A spring 47 tensions the record sheet and the ink ribbon. The screw and nut 10, 12 may be replaced by rack gear.
Patent GB-1417918-A (GB)
Title: Balanced reciprocating hand tool driven by rotary motion
IPC: B24B23/04
Filed: 1973-06-08
Abstract: 1417918 Abrading; filing L U SHAPIRO 8 June 1973 [8 June 1972] 27468/73 Headings B3D and B3L [Also in Division B5] A hand tool comprises a reciprocating tool member, such as a sander 19, sabre saw or file, driven by a rotary motor 27, and a force balancing member 201 also driven by the rotary motor to reciprocate in opposition to the tool member. The motor is mounted in a housing 13 having handles 15, 17, the handle 15 having a trigger 21 controlling an air supply which passes through a passage 25 having an adjustable throttle valve 211 to the motor which is of the vane type and has a shaft 37 supported in bearings 29, 31. A pinion 35 is mounted on the shaft and meshes with gears 39, 41 secured to pins 43, 45 rotatably mounted in the housing. Each gear has an eccentrically-mounted pin 145 connected to one end of a respective rod 47, 147. The other end of rod 47 is connected by a pivot 49 to a forward drive plate 51 which is thereby reciprocated along guide tracks 53 in the housing. A rear plate 151 is also reciprocatable along the tracks, the two plates being connected by screws 65, 165 to a cover-plate 63 to which the sander shoe 19 is secured by screws 61, 161. The other end of the rod 147 is connected by a pivot 149 to the balancing member 201 which is guided for reciprocating movement along guideways 203 in the housing. The gearing is such that the balancing member always moves in the opposite direction to the sanding shoe. The air exhausted from the motor creates a pressure in the housing and acts to form an air bearing between the tracks 53 and the cover-plate 63. The air also blows away foreign matter and cools the sander shoe. In another embodiment, one of the rods 147 is larger than the other so that both the tool member and balancing member are at the same end of the housing.
Patent GB-1470547-A (GB)
Title: System for transition-coding binary information
IPC: H04L25/49
Filed: 1974-06-20
Abstract: 1470547 Digital transmission; coding THOMSON-CSF 20 June 1974 [22 June 1973] 27487/74 Heading H4P An encoder is arranged to encode binary NRZ data Fig. 1 into a signal TH having a mid-bit cell transition to represent one binary value such as "1" when the preceding bit is the other binary value "0", an end of bit-cell transition to represent the other binary value "0" when the preceding and following bits are the one "1" and the other "0" binary values respectively and no transition when the bit cell represents the same binary value as the immediately preceding bit cell and when it represents the other binary value "0" provided the preceding and following bit cells are the one "1" value. In the encoder Fig. 4 NRZ data and clock synchronizing signal H are applied to a shift register including flip-flops 10, 11, 12 which function together with AND gates 15, 16 OR gate 17 and a binary divider flip-flop 18 in accordance with the waveforms shown in Fig. 5 to encode the input NRZ data into the above form TH. A decoder (4, Fig. 6, not shown) is disclosed which includes four bi-stable flipflops (20-23) forming a shift register the outputs from which are supplied to a gating circuit including AND gates (25-30, 37, 38) OR gates (31-33, 39) and a flip-flop (40) providing the NRZ data output. The shift register (20-23) and flip-flop (40) are controlled by timing signals 2H and H obtained from a timing extraction circuit (3) so as to function in accordance with these timing signals 2H and H (Fig. 7, not shown) to decode the signal TH into the NRZ data form. The timing extraction circuit (3) is disclosed in detail (Fig. 8, not shown). The transmitted message is preceded by a synchronizing sequence of alternating 0 and 1 bits. After transition coding this sequence gives a signal TH of pulses 1 of duration T emitted at a period 2T that is a signal which but for phase corresponds to H/2. This sequence is used to frequency look an oscillator (51). Signals (S12) received at the input of a receiver are demodulated in demodulator (5) to extract the modulating signal TH from a carrier frequency. The timing extraction circuit (3) employs a phase locked loop including the oscillator (51), frequency dividers (54, 56 and 57), a phase comparator (52), a switch (59) controlled by a comparison at (58) of the output (S13) from the phase comparator (52) with a predetermined threshold (S14) and a filter and amplifier (53) to provide the timing signals 2H and H to the decoder (4).
Patent GB-469063-A (GB)
Title: Improvements in or relating to rotary drums
IPC: F27B7/20
Filed: 1936-10-09
Abstract: 469,063. Converters; rotary mixers. METALLGES. AKT.-GES. Oct. 9, 1936, No. 27497. Convention date, Dec. 10, 1935. [Classes 72 and 86] [Also in Group XII] A converter or mixer for use in chemical and metallurgical operations is rotatably mounted in a tilting carrier ring 5, which houses pairs of rollers 12 engaging two track rings 17, and end thrust rollers 15 accommodated between the rings. The carrier ring is mounted on trunnions for rotation through an angle of about 360‹, and carries the motor 20 for driving the drum.
Patent GB-1532158-A (GB)
Title: Poppet valves for example for pneumatic piston apparatus
IPC: B25D9/16
Filed: 1977-07-01
Abstract: 1532158 Valves PNEUTEK Inc 1 July 1977 [19 Aug 1976] 27559/77 Heading F2V In a valve for closing the end of a cylinder of a piston actuator, a polyurethane cover 36 is bonded to a metal backing plate 34 and the assembly is force-fitted into a recess 64 of a cylindrical valve member 10 and secured by a hollow screw 46. The cover extends around a peripheral flange 38 on the backing plate and has a diameter intermediate that of the portion 65 of the recess and the largest diameter of the conical portion 66 of the recess so as to be deformed on fitting into the recess to fill the latter.
Patent GB-1430657-A (GB)
Title: Method of evaginating a flexible tube
IPC: B29C71/00
Filed: 1973-06-11
Abstract: 1430657 Evaginating tubes ASHIMORI KOGYO KK 11 June 1973 [12 June 1972] 27730/73 Heading D1X A tube 1 is evaginated by placing it on a rod 9 and surrounding it by a double walled annular or torvoidal shaped member 10 and pulling the tube back over said member. The evagination may be carried out over a rod 9 as in Fig. 1 or by fixing one end of the tube and pulling on a tape or the like 14 which passes through the centre of the tube as in Fig. 4.
Patent GB-426410-A (GB)
Title: Improvements relating to exercising apparatus
IPC: A63B69/06
Filed: 1933-10-09
Abstract: 426,410. Exercising - - apparatus. ABPLANALP, A., and NIGG, E., 168, Regent Street, London. Oct. 9, 1933, No. 27756. [Class 132 (i)] Rowing-apparatus comprises a flat elongated rectangular base, to one end of which are secured elastic bands provided with hand grips and on which slides a seat whose underside is provided with a layer of felt or similar material. As shown, the apparatus comprises a mahogany base 1 having a transverse bar 2 at the rear end and a second bar 3 about two-thirds of the length of the base from the rear end and bevelled to form foot-rests provided with rubber pads 4. Attached to the front of the base by bolts 5 is a cross-bar 6 having endcaps 7 provided with eye-bolts 8 engaged by spring catches 9 connected to spring catches 12 engaging in eye-bolts 11 in hand-grips 10 by one or more endless rubber bands 13. The underside of the sliding seat 14 has a pair of guide projections 15 spaced substantially by the width of the base 1 and between which is attached a felt layer 16. Secured to the top of the seat is a cushion 17. An intermediate support 18 may be provided, and a hook 19 may be provided for the suspension of the seat when the apparatus is out of use.
Patent GB-866371-A (GB)
Title: Improvements in or relating to apparatus for dispensing liquids in measured quantities
Inventor: BERWICK WILLIAM RICHARD
IPC: G01F11/38
Filed: 1958-08-29
Abstract: 866,371. Delivering measured quantities of liquid; coin-freed liquid-delivery apparatus. GASKELL & CHAMBERS Ltd., [trading as NON-DRIP MEASURE CO.]. Aug. 19, 1959 [Aug. 29, 1958; May 7, 1959], Nos. 27802/58 and 15735/59. Classes 27 and 106(5) An apparatus for dispensing measured quantities of liquid comprises a valve 5, Fig. 2, which is connected between a supply container 1, Fig. 1, and measuring chamber 16 supported above the valve and consists of a horizontal cylindrical housing, a plunger 9 movable axially in the housing and normally urged by a spring 13 to close the inlet connection 4 with the container 1, and a pair of ports 17, 18 interconnecting the interior of the housing and measuring chamber; when the plunger is displaced 'away from its normal position, the port 18 connects the measuring chamber with the inlet 4 and, upon return of the plunger, the port 17 connects the measuring chamber to a discharge outlet 15 by way of a groove or passage in the plunger. As described for dispensing milk, the container 1 is a transparent bowl mounted on a base 3; a motor-driven paddle 2 keeps the milk in gentle circulation and a refrigerated unit cools the base of the bowl. The housing 5 which is disposed in a casing 3a on the side of the base 3 is mounted directly on the end of the pipe connection 4 from the bowl 1 and may carry a depending lug 25 fitting over a rod 26. The end of the plunger 9 carries a sealing disc 12 co-operating with the inlet pipe 4, and the body of the plunger has a peripheral groove 14 to provide the connection between the port 17 and outlet 15; the groove 14 may be replaced by a transverse passage so that the plunger, when in the position shown in Fig. 2, may be rotated through 90 degrees to prevent dipping. The plunger may be moved axially to a third position in which there is direct flow from the inlet to the outlet. When it is desired to empty or clean the apparatus, a plug 23 in a drain pipe 22 is removed. The apparatus may be operated manually by providing a hand knob on the end of the plunger rod 10 or mechanically by providing a coin-operated switch to energise a motor 27, Fig. 6, whereby a cam 30 acts upon a lever 32 to reciprocate the plunger. A second cam 37 actuates a switch 38 to close a holding circuit for the motor. A counter 39 records the number of transactions. Both Provisional Specifications describe, also, the valve as being of rotary plug type and the first Provisional Specification refers to solenoid operation of the valve. Specification 856,981 is referred to.
Patent GB-1020544-A (GB)
Title: Improvements in or relating to the preparation of dry powders for preventing smudging of freshly printed articles
IPC: C09C3/04
Filed: 1962-07-19
Abstract: A dry dusting powder, for preventing smudging of freshly printed articles, and a process of printing wherein such a powder is used, is made by a process which comprises forming a solid aggregate of composite granules of calcium carbonate or sulphate, calcium magnesium carbonate, or barium sulphate of less than 5 microns in a mass of a binding agent comprising sugar, common salt, a thermoplastic, a heat melting thermosetting plastic, stearic acid or a stearate, a palmitate, naphthenate, behenate or oleate, a natural wax, a vegetable oil or resin, and reducing the aggregate to or extracting therefrom those composite particles of 10 to 100 micron size.  The known methods for coating may be used.  The examples refer to stearic acid coated calcium carbonate, sodium chloride coated calcium carbonate and a resin coated barium sulphate.
Patent GB-1115915-A (GB)
Title: Mgo-nio-cuo-zno series ferrite
IPC: C04B35/30
Filed: 1965-07-01
Abstract: 1,115,915. Magnetic compositions. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA. 1 July, 1965 [25 July, 1964], No. 27906/65. Heading H1H. A ferrite is formed by sintering a mixture having the following composition in mole per cent : at 1200-1250‹ C. The initial permeability, quality factor, resistivity, and Cusic temperature of various compositions are given. The ferrite is used to make cores for the deflection coils of cathode ray tubes.
Patent GB-466765-A (GB)
Title: Improvements in stools to be used in the casting of metal
IPC: B22D7/06
Filed: 1936-10-14
Abstract: 466,765. Ingot moulds. AMERICAN METAL CO., Ltd. Oct. 14, 1936, No. 27938. Convention date, Oct. 22, 1935. [Class 83 (i)] A stool for an open-bottomed ingot mould has the 'area, liable to direct impingement of the poured metal, made of corrosion resistant material the remainder comprising bars of copper or other good conductor. The resistant material may comprise cast iron, certain alloys, carbon, graphite, carborundum, fire clay, magnesite, chromite, &c., may be divided into bars 11, and may extend to the full width or depth of the mould or both. The good conductor is divided into bars 12, 12b, Figs. 1 and 5, and is used to back the resistant material as at 12a, Fig. 3, if required. The bars 11, 12 are loosely mounted in a frame 13 one side 15 of which is pressed inwardly by springs 14.
Patent GB-363706-A (GB)
Title: Process and apparatus for the manufacture of yarns with centrifugal spinning machines
IPC: D01H1/08
Filed: 1930-09-18
Abstract: 363,706. Centrifugal spinning- machines. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Sept. 18, 1930, No. 27951. Convention date, Feb. 12. [Class 120 (ii).] In spinning yarn from slubbing capable of being drawn upon centrifugal machines, such as described in Specification 18989/93, [Class 120, Spinning], the pull on the yarn is caused to be at least equal to the centrifugal force exerted by a pot of 140 mm. internal diameter rotating at a speed of 6000 revolutions per minute. Flax may advantageously be spun in this manner. The dimensions and speed of the pot may be such that the pull on the yarn is due to centrifugal force alone, or partly to centrifugal force, and partly to a current of air in the guide tube which may be induced by suitably constructing the cover of the pot to act as an air conveyer or by mounting the pot in a casing subjected to low pressure.
Patent GB-766601-A (GB)
Title: Production of vinyl chloride from ethylene dichloride
Inventor: GATTIKER DAVID CYRIL GEORGE
IPC: C07C17/25
Filed: 1954-09-29
Abstract: The invention comprises a method for the production of vinyl chloride by the reaction of an aqueous slurry of alkaline earth metal hydroxide under pressure on ethylene dichloride, at a temperature above 100 DEG  C., but below thermal dehydrochlorination temperature. In examples, commercial ethylene dichloride and aqueous lime slurry are heated at 194-200 DEG  C. and 200-215 p.s.i.g., 165-180 DEG  and 160-170 p.s.i.g., 130-140 DEG  C. and 100-120 p.s.i.g., and 150-170 DEG  C., and 160-165 p.s.i.g., to give vinyl chloride product of good purity.  Other alkaline earth hydroxides may also be used.
Patent GB-270769-A (GB)
Title: Improvements in apparatus for stopping trains independently of drivers
IPC: B61L3/04
Filed: 1925-11-09
Abstract: 270,769. Gray, W. J., Neary, J. W., and Lowry, J. Nov. 9, 1925. Track apparatus for stopping trains.-A track ramp adjustable from a signal box, can be raised to engage a pivoted lever on the engine, thereby operating a sliding wedge which engages a valve to open the train pipe to the atmosphere and so apply the brakes. Wedges y<1>, y<2> are bolted to the ramp c, Fig. 5, and are held in position by side-arms over wedges y, y<3> on a sliding bar b. Operation of this bar raises or lowers the ramp. The engine carries a rod a, Fig. 3, adapted to slide vertically in a casing u when the lever z is operated by the ramp; the rod a<3> which is attached to the lever z is connected by a dashpot shock absorber p to the rod a. A wedge-shaped block b attached to the rod a passes through a slot in the valve stem d<1> and opens the valve I as the rod a descends and thus applies the brakes. A spring g operates the sliding spindle d after the wedge b has passed below it so that the spindle a cannot be raised to permit the valve I to close until the locking spindle d has been returned to its initial position. If an air pressure brake is used instead of a vacuum brake, the mechanism is arranged so that the valve opens into the pipe attached to the pressure system instead of moving away from it, as in the form shown in Fig. 3. A heating coil may be provided in the casing u. The lower part of the apparatus is enclosed in a casing z<1> secured by a locking bolt v<1>. When the lever q strikes the ramp, the bolt is withdrawn and the spring x lifts the casing z<1>. The hanging lever z then strikes the ramp and the valve is operated to stop the train.
Patent GB-1269021-A (GB)
Title: Signature collating apparatus
IPC: B65H39/055
Filed: 1970-06-11
Abstract: 1,269,021. Delivering sheets; feeding sheets. J. W. CLEMENT CO. 11 June, 1970 [25 June, 1969], No. 28334/70. Heading B8R. Apparatus of the general construction disclosed in Specification 1,221,450 includes means whereby, when a malfunction signal is received by the monitoring device from any one feeder unit, all the following units and the calipers associated therewith are rendered inoperative. Such a signal energizes, as it reaches each stage of the monitoring device shift register, two solenoids 110, 116, Fig. 8, associated with the following unit. The solenoid 110 opens a valve 112 to admit air under pressure to an oscillating pneumatic sucker 22, Figs. 5 and 8, for separating signatures from the bottom of a pile in a magazine. The solenoid 116 moves an arm 118 to hold the sensing arm 32 of the caliper in its no-malfunction position. Thus a faulty book diverted by the ejector mechanism will contain only signatures fed to it at or before the malfunctioning unit.
Patent GB-728087-A (GB)
Title: Improvements in machines for lapping tape, thread and like flexible material on to an electric conductor or other support
Inventor: BURR HARVEY
IPC: D07B7/14
Filed: 1952-11-11
Abstract: 728,087. Lapping tape; &c., on to electric conductors, &c. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Nov. 10, 1953 [Nov. 11, 1952], No. 28418/52. Class 109. Apparatus for helically lapping tape, thread, &c., 1, 2 on to an electric conductor, &c., 3 comprises a rotating frame 6 ... 9 carrying coils 12, 13 of tape, &c., the tapes, &c., 1, 2 being delivered from their coils by driving devices comprising rollers 18, 19, 20 about which the tape, &c., passes in a sinuous path, the rollers being driven by rotation of the frame and at a speed such that the tape, &c., is drawn from its coil faster than it is taken up on the travelling core 3 but can slip, as necessary with respect to the rollers, the tapes, &c., then passing through guides 32 against which an adjustable braking device, preferably comprising a spring-urged pad, applies a substantially constant tension to the tapes, &c., as they are lapped. The rollers 18, 19, 20, which are rubber-covered and furnished with intermeshing gears 24, are driven from a stationary sun wheel 45, with which meshes a planetary wheel 43 on the frame, a shaft 42 and gear box 22 the rollers being positioned between upper and lower plates 27, 29, the plate 27 being furnished with curved guides for the tape, &c.